Plasma torch



FIG. 1 is a front elevational view of a plasma torch showing my new design;

FIG. 2 is a right side elevational view;

FIG. 3 is a rear elevational view;

FIG. 4 is a left side elevational view;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view. 

The ornamental design for plasma torch, as shown. 